A kind of lending method and system, equipment and storage medium with privacy information protected
A private information and protected technology, applied in the blockchain field, can solve the problems of leakage of private information of both borrowers and lenders, lack of privacy protection of both borrowers and lenders, and achieve the effect of preventing bad debts and eliminating the possibility of bad debts
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Embodiment 1
[0058] A lending method with privacy information protected, such as figure 1 As shown, the steps are:
[0059] S101. Construct a loan transaction including the lender's DID;
[0060] S103. Match lending transactions that satisfy the loan transaction content;
[0061] S105. Check whether the lender's public key B matches the DID. If they match, return the lender's private information plaintext m to the evaluation center for credit evaluation; wherein, the DID is obtained through the lender's private information plaintext m authentication;
[0062] S107. When the credit evaluation result meets the requirements, the loan transaction and the lending transaction are matched successfully, and the loan record is saved on the blockchain.
[0063] The lending transaction is placed on the blockchain network in advance, so that after the loan transaction is successfully constructed, the lending transaction that matches the loan transaction content can be found on the blockchain network...
Embodiment 2
[0102] This embodiment provides a lending system with protected private information, corresponding to a lending method with protected private information in Embodiment 1, such as Figure 7 As shown, it includes an evaluation unit, an identity authentication unit, a matching unit, and a transaction construction unit; wherein, the transaction construction unit is used to construct a loan transaction containing ciphertext m1; the loan transaction is verified, packaged, and recorded in the area after consensus on the block chain.
[0103] The identity authentication unit is used to obtain the DID through the lender’s private information plaintext m authentication, specifically, the lender submits the private information plaintext m to the identity authentication unit, and the identity authentication unit judges the lender’s Whether it has been authenticated by the identity authentication unit, if it has not been authenticated, a DID will be randomly generated and assigned to the l...
Embodiment 3
[0118] An apparatus comprising: one or more processors; memory for storing one or more programs which, when executed by the one or more processors, cause the One or more processors execute the method as described above.
[0119] A storage medium storing a computer program, when the program is executed by a processor, implements the method described in Embodiment 1 above.
[0120] Figure 9 It is a schematic structural diagram of a device provided by an embodiment of the present invention.
[0121] Such as Figure 9 As shown, as another aspect, the present application also provides a device 500, including one or more central processing units (CPU) 501, which can be 508 programs loaded into random access memory (RAM) 503 to execute various appropriate actions and processes. In the RAM 503, various programs and data necessary for the operation of the device 500 are also stored. The CPU 501 , ROM 502 , and RAM 503 are connected to each other via a bus 504 . An input / output (...
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